G Saunders' Home Page

INFO465 - Senior Projects in IS - Summer 2018


(8/9 Afternoon) Final Grades and critique are posted for the course. Final grades have been posted at eServices and should show up after this evening's batch is taken on by the registrar. There wasn't much time for review and if any errors or omissions are found they'd require a change of grade. The few that were 'on the edge' were pushed over.

Full Points for Project #3, rigging an individual site to collect commissions, were posted for those in the Commissions Report. Incomplete results were noticed for some and they got fewer points.

(7/26) Here's the SQL to report commissions since July 1st:

select OId, OStatus, OAccountingDate as `Acct'g Date`, DItemDescription as Description, 
concat(Cust.AcctFirstName,' ',Cust.AcctLastName) as Customer, 
concat(CmsnTo.AcctFirstName,' ',CmsnTo.AcctLastName) as `Commission To`, 
format(-1 * DDlvQty * DCPEach, 2) as Price, format(-1 * DDlvQty * DCPEach * .20,2) as `C'msn` from Details 
join Orders on DOId=OId join Accounts as Cust on OAcctId=AcctId 
join Accounts as CmsnTo on PayCommissionTo=CmsnTo.AcctId where PayCommissionTo is not null and 
OAccountingDate > '2018-07-01';
| OId  | OStatus    | Acct'g Date | Description                    | Customer        | Commission To | Price  | C'msn |
| 4900 | CCDeclined | 2018-07-24  | C V Illustrated by Leo Davinci | Rowdy Chihuahua | Leon Pinscher | 125.00 | 25.00 |
| 4904 | Fulfilled  | 2018-07-26  | C V Illustrated by Leo Davinci | Joseph Jenkins  | Leon Pinscher | 125.00 | 25.00 |
2 rows in set (0.01 sec)

More politely formatted:

select OId, OStatus, OAccountingDate as `Acct'g Date`, 
  DItemDescription as Description, 
  concat(Cust.AcctFirstName,' ',Cust.AcctLastName) as Customer, 
  concat(CmsnTo.AcctFirstName,' ',CmsnTo.AcctLastName) as `Commission To`, 
  format(-1 * DDlvQty * DCPEach, 2) as Price, format(-1 * DDlvQty * DCPEach * .20,2) as Commssion 
from Details
  join Orders on DOId=OId 
  join Accounts as Cust on OAcctId=AcctId  
  join Accounts as CmsnTo on PayCommissionTo=CmsnTo.AcctId 
where PayCommissionTo is not null and OAccountingDate > '2018-07-01';

For an individual site's commission report the query would select Details where PayCommissionTo is their AcctId at 2017Winter and OStatus is Fulfilled. Mashing the SQL into a script similar to the any of the SeSPoP reports should be easy.

(7/24) Part 1 of the two part Exit Exam will be given on at the beginning of class on Thursday the 26th. You must show up with a notebook computer running Windows that will run an app from a Windows USB2 Thumbdrive. Those who show up with incompatible computers can take Part 1 on the 26th and schedule a time to take Part 2.

Scoring: Those who earn at least 35% on the exam will get 5 points plus a point per decile above the 5th. Someone who scores less than 35% will get 1 point per decile in the class ranking. Someone who scores 30% on the ISA exam would likely get two or three points and someone who scores 45% would likely get 7 or 8. It's a tough exam, about half a class usually scores 50% or better. Most semesters there are a couple or a few who score at the Master's Level, 70%.

Check Prior Notes for details about ICCP's ISA - Information Systems Analyst Certificate.

(7/24) For Project #3: Earn and report commissions on a couple of items sold from your individual web shop at info465.us. Make it work like the 'Click to Buy' links and at info465.us/tinstructor, except make the link to 2017Winter, not 2016Winter as at tinstructor. Watch this spot for how to make a commission report this summer -- meanwhile, 2017Winter's ItemCatalogEntry.php appears to be handling requests accurately...

(7/10) Here are rough instructions for setting up a shop for a partner organization of 2017Winter...

Is this helpful? PLMK any questions it leaves unanswered...

(7/3) Here's a quick sketch of a class diagram for an app similar to your Project #2.

(6/28) No class Thursday the 5th. Enjoy a long holiday weekend, and use some time over the long weekend to get Dlv #2 perfected if it's not ready on time...

(6/28) The php class named like DemoChex is not used, should have been left out of the samples, was the original script by a crew of students at MW Gov's School, which was made to fit at SeSDoC as SeSDoCForm. Don't waste any effort on it, just rm it...

Product graphics need to fit mobile-first and be responsive, should all be sized with Photoshop or other editor to the largest they'll display on a wide browser and scaled with css @media for the larger display if needed to fit both mobile and wide browser. Images should be either transparent background with similar sized subjects or identically-sized if backgrounds aren't transparent. Images distorted when resizing or pixelated are not acceptable without a specific waiver.

(6/14) Project #1 Part #1, a valid, mobile-friendly site with three product images that meet specs is due at the beginning of class Tuesday the 19th. All that's needed is valid html at w3c validator and if you're not using BootStrap the css needs to validate at w3c css validator. The other points for spec compliance as reported at info465.us will come along with Project #1 Part #2, which is tentatively due at the beginning of class on the 3rd...

Command Line & vi: It was good to see so many in the class able to sit and be productive at the unix command line with very little prompting. I expect everybody's got time to get comfortable there before points are due. I have been showing students how to work in this environment since 1981 and most catch on easily, especially since bash uses PC keyboard edit keys. Unix is ubiquitous these days and demand for these skills remains high. I've had lots of grads tell me that ability to work at the command line and maybe interpret what's in the logs got them their job. Lots tell me they couldn't interview because they couldn't do it. My best advice is to learn it and put it on your resume along with Windoze and IBM i or z, there's more unix than ever and more value in integrating all these environments with it. Nothing pisses a technical interviewer off more than somebody who's derisive or dismissive of the command line and can't navigate or edit a file without a GUI.

Syllabus & Intro

Syllabus and A 'Design & Build' Experience. Please note the course objectives in the syllabus and plan to demonstrate that you've met them, repeatedly!

My objective as an instructor trying to maintain the value of our IS Degree is to _see_ that each student can do what the objectives say our grads can do. There's some 'remediation' required for many students who somehow didn't get those 'database programming' skills earlier but has mastered most of the UML and MSProject stuff. My method is to limit the scope of the class' projects to something that can be done in a semester, provide a tried and true framework & sample code for it, and provide as much tech support as 1 instructor in a class can do. The ordinary student masters the technologies involved, meets the specs, and leaves the course with an A or B.

Good-looking project documents make valuable entries in a graduate's professional portfolio, can go a long way to convincing some interviewer you know a debit from a credit, a while from an if, and have a good grip on your model view controller. If a student doesn't have a portfolio of technical skills or can't pull one together it can break the relationship with the recruiter or hiring manager at the threshold to some career...

The Exit Exam

INFO465 is where we do a big part of our 'program assessment' and the ICCP's ISA-Information Systems Analyst exam is an important part of that. This certification exam is scored according to our ABET-Accrediting Board for Engineering & Technology. VCU students rock on this exam and it's not unusual for half or more of INFO465 students to score for the certificate.

The Exit Exam will be near the end of the semester. Some students will use the whole 75 minutes for the exam, so please arrive early with Windows ready and able to use a USB-2 Thumb Drive!

A max 10 points will be posted for students earning 35% or higher, no points will be posted for those who elect not to take the exam or score less than 35%. 5 points will be posted for scoring more than 35%, plus 1 point for each decile past the 5th. So, somebody whose score falls in the first decile would earn 5 points and a score in the 8th earns 8.

The exam is given on a USB-2 thumb drive using a _Windows_ notebook.

Mac users, please make absolutely sure your virtualized or BootCamped Windows will share the USB! Bring a USB-2 dongle if your ultrabook only has USB-C!

Learn more about it at ICCP.org. It covers most of what you've learned in the IS and BFO-Business Foundation core courses. A 70% score earns the ISA Masters certificate, 50% earns the ISA Practitioner. If you earn a certificate ICCP will issue it for $250 -- we pay for you to take the exam, you pay for the certificate only if it's earned and you want it.

The burger menu at iccp.org has a Shop, the Official Examinations Guide and Study Questions for the IS Core Exam are available for a fee -- it's delivered on-line and it can be shared. It looks like the some time with the study quide might improve the score by 10% or more and putting a bunch of others around it is a good strategy.

Prior notes, where there are some, will be moved to: PriorNotes

Class Meetings:

Most specs and advice are given in class, verbally, some are here...

(6/12) Working Server Side

Click Logging in and working at info465.us for references about working at the command line at info465.us. User ids and passwords were shown in class, expecting that the first command on-line will be passwd...

Mobile First, Responsive HTML5 and CSS3 Forms

Demo'd SeSDoC forms: Mobile first, responsive, valid html5 and css.

These links were visited and examined in class. They are all dead-simple HTML and CSS, just enough to clearly demonstrate semantic markup of content and forms.

(6/12) Project #1: Learn Linux, vi, and make sample code work in your web directory

This 20-point project is to put up a demo site that gets all the specs below and will launch from your link at info465.us.

Dlv #1 is 5 points: demo a valid, mobile friendly, responsive site that launches from your link at info465.us, identifies your fictitious organization and shows off three items for sale. Get your SiteThumb image or animation in place and set the name of your fictitious hussle into your settings. Use similarly-sized product images with transparent backgrounds, or use identically sized product images. Size images no larger than the largest they'll be displayed on the page, no distortion or pixelation. Copy/tweak class samples is fine, learning a framework or using it again is better. The class' coding samples are easy to stick into most any template...

Dlv #2 is 15 points: add an application form to demo JavaScript and PHP.

The project is to explore a linux web server, develop proficiency with the command line environment and the vi editor, and demo mobile-friendly, responsive features of HTML5 and CSS3. Sample code is provided in PHP and JavaScript to present a standards-compliant, mobile-friendly html form and validate it browser-side with JavaScript and also server-side with PHP. If you're using the sample code, please plan to customize it as you go along so the end result doesn't look much like the samples. 5 bonus points will be posted for students who abandon the instructor's samples and get all the specs with other stuff.

If you've already done responsive HTML/CSS 'from scratch' this might be a good time to learn a CSS or CSS/JavaScript framework! The PHP examples deliver forms and content by replacing strings in an html template so they are easily adaptable to a template done up with Bootstrap, Foundation, or an even heavier CSS/JavaScript framework.

Gain familiarity with the Linux command line at info465.us and use it to copy text files, scripts, css, and html from /home/SeSDoC and /home/SeSDoC/web or your framework to your home directory and web directory and tweak them into webpage that shows up from your link at info465.us.

Next, study the features of HTML5, CSS3, PHP and JavaScript in the sample code for semantic markup, responsive web design, and form handling. The SeSPoP and SeSDoC pages have links to Tutes for all these topics.

Decide whether you'll adapt the sample code at SeSDoC or Resp for your project, or start from scratch, or use a lightweight CSS framework like W3Schools RWD, W3CSS, Bootstrap, or something heavier with more pizzazz. Exploring AJAX and jQuery are also worthwhile while you've got a server at your fingertips if web designer is something you'd like to be.

The sample code at SeSDoC uses 'html templates' and is very easy to fit SeSDoCForm.php and other reports into an html template made from a css3 framework like W3CSS, Skeleton, BootStrap...

Make the html and css suit the fictitious organization, business, or hustle you confabulate for your case study. The index page will become a store-front that earns commissions on sales of at least three products or services. Choose a thumbnail image to represent your site at info465.us and make the site comply with the SiteThumb spec (at the bottom of the Thumbnail page at info465.us) so your site appears in the gallery at info465.us. Transparent backgrounds are attractive, animated gifs of a few dozen frames are fun to see.

(6/19) Specs for Project #1 Dlv #2:

If you're working from the samples provided, consider the acronymns SeSDoC and SeSPoP as the property of these ficititious organizations and they should not appear in the file or variable names involved in your website. The info465.us enforces these and other specs.

All form elements, variables, and objects should share the same meaningful name, consistently applied so that columns in the database, names and ids of html form elements, file names, and variable names in JavaScript and php code, are all named the same.

No embedded or in-line Styles! This is what 'separate style from content' means! All CSS must be 'external', in a local file linked in the head of the document! If there is an exception, add a style for it in the external style sheet. If there is some reason you must embed or use in-line styles to achieve some effect, please discuss it with the instructor.

All pages must be consistently styled with the same or similar external css3.

If a semantic element exists, use it. Do not use plain divs with ids or classes named like header, footer, menu, aside, or any other CSS3 semantic selector. Don't use frames or iframes, named or otherwise. Make your page a very clear demo of the best markup for semantics and style!

Use CSS3's semantic elements for page layout to best advantage: As a minimum, structure your page layout using: header, main, aside, and footer.

Use CSS3's semantic elements to mark up content: p, h1-6, ul, ol, li, strong, and em, table, td, tr...

Use CSS3's form elements to mark up forms: fieldset, legend, and label.

The elements in the sample form at SeSDoC define an html form in a standards-compliant way so that is usable in a mobile device without any stretching or tapping and is also accessible for handicapped persons and search engines.

Use a grid scheme for responsive design. The samples use the '12 grid' scheme from W3School's RWD tute with Row and Col defined in CSS, amenable to folding for tablets and phones. This also appears in W3CSS and the equivalent is in BootStrap and Skeleton.

Optionally, semantic elements article and section may be used to organize featured products or items, newsletters, blogs, and other complex web documents. Styling an article is a good way to implement material web design features like cards.

Wildcard classes of CSS3 make it easy to adapt a multi-Column grid system to any kind of device by being clever with object names like 'Col-' or 'Card' to adapt seamlessly with any sized viewport. W3Schools RWD and W3CSS show how to use these wildcard features. These features are well used in most CSS3 Frameworks!

CSS styles make it easy to make accordion or drop-down interfaces for the user, or change from a hamburger to a menu when the window gets big enough. Many CSS3 transitions are now supported by current versions of all common browsers and most vendor-specific styles may be retired. There's a lot of value in learning how to do these with native jQuery or one of the frameworks that uses jQuery -- these are the slickest and doing them the way Google does it is a good thing!

Serve all graphics, fonts, libraries, frameworks, and styles directly from your web directory at info465.us and be ready to report on their bulk. Quick loading speed on a slow network is of the essence. Google guidelines favor lightweight pages that load fast even on a 3G network. Limit the size of graphics for products on the home page to something less than half a megabyte. Size all images for their max dimension as used on your site. (If it's 300px wide on the page don't link to an image that is 2000px wide in the img tag, and don't use dimensions in css or html to make large images fit.) Use a photo-editor on your desktop or online to size images. Make sure all re-sizing results in sharp images and doesn't result in unsightly artifacts...

Set the permissions for your web and any of its sub-directories to 705. Set the permissions for all files in your home and web directories to 604. The intent here is that the web server can read these files but others in the info465 group can't.

(6/21) Specs for The Form in Dlv #2

Project #1's 1st deliverable was a single page, mobile-friendly at google and valid at w3c, website for some fictitious shop or organization allied under 2016Winter's umbrella.

The 2nd deliverable is a two-page site that launches from the link at info465.us, showcases at least three products on the home page, and has a form on the second page that has been customized to suit membership or other relationship with your ficititious organization. All css is external, html5 and css3 validates at W3C validators, and all pages score Awesome on Google's mobile friendly test.

Project #2 will be to add user authentication and update the database using the form built in Project #1 Dlv #2.

The PHP or Python-generated form must work at least as well as the sample code provided at SeSDoC, meeting these finer specs:

Open Lab

Tech support for learning the command line and vi and Project #1, Dlv #2...

Things not looking right in the browser? Maybe getting an empty page back or missing an img? Tailing the log might help: Open a new ssh window and log in to info465.us. Use this to show the tail of the log and follow it, replacing 'yourlogin' with your login id at info465.us.

tail -f /var/log/httpd/error_log | grep yourlogin 

This will show errors produced by html or scripts from your directory when you load or refresh a page so keep it visible while you work. Use ctrl-c to stop tailing the log.

Please use the references! There's a month's time to get up to speed with mobile-first, responsive design with css3, html, form elements, JavaScript, and PHP... Validate early and validate often! W3Schools, Google, and Mozilla are all excellent references, have been revamped to cover mobile-first, responsive design. Consider W3Schools as introductory stuff, followed by Google's authoritative guidelines, and Mozilla's very detailed docs. The CSS Zen Garden is worth a stroll...

Some hints on debugging:

In short:

If you're programming without the developer and debugging tools running, you're just guessing and frustrating yourself and ticking off the intructor in lab, and will likely inject numerous errors in the code while blindly trying stuff.

Keep the debuggers visible at all times even if everything appears OK since they may be showing warnings that detract from a professional result.

Here is a screenshot suggesting a juxtaposition of putty or Mac terminals and a browser while debugging. A quick mouse-click or Alt-Tab moves among browser and code windows. The tail of the log is always visible so it's easy to see it jump if/when there is an error in a script...


Click Debugging PHP and MySQL for videos...

Developer's Tools vary a lot from browser to browser! Some even takes lotsa seconds to load and cause the fans to come on just to show all the charts and graphs! The instructor usually debugs with FireFox Developer Tools, W3C, and Google, then Chrome on an Android, then Safari on a tablet, then with FireFox Developer Tools, then Chrome on a notebook, then Edge. Make sure you know how to refresh components in whatever Developer's Tools you use since many ISPs cache static content and don't recognize file changes on the server! Firefox and Chrome's source views flag some HTML and CSS errors, are quicker than the W3C Validators. FireFox and Chrome both allow Ctrl-u to get to source code, others substitute their own overblown developer's tools.

(6/19) Tail The Error Log!

Keep the tail of the error log visible at all times as you code! If you're getting an empty page back or unexpected results from a PHP script, or missing an image /var/log/httpd/error_log will likely show the error.

Open a new ssh window and log in to info465.us. Use a command like this to show the tail of the log and follow it, replacing 'yourlogin' with your login id at info465.us.

tail -f /var/log/httpd/error_log | grep yourlogin 

This will show errors produced by html or by PHP or other web scripting languages from your directory when you load or refresh a page so keep it visible while you work.

Use ctrl-c to stop tailing the log.

If you haven't been tailing the log and wonder about recent errors, you can grep them out of the error log like this, replacing yourlogin with your login id:

grep yourlogin /var/log/httpd/error_log

If there are no errors in httpd/error_log but the script isn't producing the correct web page, place echo statements followed by exit at strategic points in the PHP code so you can _see_ what's going on before the HTML is pitched.

Something like this might be helpful:

echo $View; exit;
Or, use print_r to show superglobals or arrays:
print_r($_POST,false); exit;
at the top of a script would show the POST data submitted from an HTML form to remove any doubts what's in the POST data...

Debugging JavaScript: From FireFox or Chrome's Menu at the right of the title/search bar, choose More Tools → Developer Tools and figure out how to use it from any of several on-line resources.

To get a quick look at errors from JavaScript use the Console tab with Preserve Log set to capture errors from statements in <script, onClick, and other HTML elements. Position the console so you can see the error messages as the page loads and events are triggered. Double-click on an error to be jerked to the errant line of code.

Use the W3C HTML and CSS validators early and often and don't continue debugging until they are valid. Design for mobile first with viewport set, then tweak @media queries for larger displays. Use Google's mobile friendly test, try W3C mobile validator for more of a challenge.

(2/26, 27) Team Project: UML State Chart

Use info465.us/2017Winter's Log In or Get An Account dialog, at the upper right where 'Web 2' says it should be, for each team member. Do it one at a time while Rowdy Chihuahua or Rhue Pinscher are available to authorize accounts. Watch the process carefully so the team can get an accurate state transition diagram together for the project's deliverable.

If anything's unclear in the process or some non-fluency is discovered please document it so we can get it to the attention of the developers next time we can catch them.

Errata: info465.us is not set up to get email to you @vcu.edu, but works almost everywhere else. Using a gmail or other email account where you can click on a link to validate your email is easiest. If you don't want to use a real email address, use your userid@info465.us and the command line's mail to read the email validation code.

The 2017Winter database is available so you can closely track the value of AcctStatus to get the state chart accurate. A select-only connection string is:
mysql -u2017Winter -pWinter2018 2017Winter

PHP code is available read-only in /home/2017Winter/Web.

(6/26) Project #2 Assigned - Authenticate Users, Establish a Secure Session, Menu, Update Database, Report...

Demo in class showed PHP's session_name, session_start, session_destroy and also looked at a session cookie under the i-spot in the browser and session data kept in /var/lib/php/session on the server. LogIn.php authenticates via web-service at 2016Winter by opening a pipe to handle a request with userid and password and response with not-valid or user's name. LogOut.php uses session_destroy to clear all the data from the session on the server. Every 'protected' php script requires SiteSettings.php which blocks access to pages if a browser's not logged in and redirects the browser to LogIn.php or index.html. Find these features in the code and be prepared to explain them.

Modify your site at info465.us to work similar as the example at info465.us/tinstructor, making a link like 'Members' prominent on your existing page. The project is to make your site authenticate users with 2016Winter credentials and provide forms and content to logged-in users only. If somebody tries to access a 'protected' url, they should be directed to the LogIn script for authentication, then to the url they attempted to reach.

The specs for the behavior of the form are the same as Project #1, all input elements should be returned with text, checks, and selections the same as the user entered. And the user should be able to re-submit a form if they notice an error. The specs for Project #1 were intended to make a form that can easily be secured and used to update a database.

The sample scripts are available from the command line in /home/tinstructor/ and /home/tinstructor/web/.

/home/tinstructor/SiteSettingsSample.php is available to copy and modify to suit your Site. Leave the functions intact. Edit at the top and bottom to supply _your_ SessionName and database credentials. Take care not to clobber your existing SiteSettings.php when fitting the new script in your account.

Copy these scripts to your web directory: TemplateSeSDoCForm.html, SeSDoCLogIn.php, SeSDoCController.php, SeSDoCLogOut.php, and SeSDoCApplicants.php. SeSDoCCommissions.php is not available to copy. After you've made them run, edit them to suit your site and database.

SeSDoCForm.php differs from the earlier example. Don't copy it over your existing form's script. Copy the changed parts to your script:

Here's a class diagram of a project similar to your Project #2:

MVC Thumbnail

Notes about SQL scripting at the command line are at MySQL/MariaDB Scripting and were demo'd in class.

The user id for your individual MySQL/MariaDB database is the same as your id at info465.us and passwords are the upper-case 1st letter from your first name and the last 4 lower-case letters from your last name. Rowdy Chihuahua's connect string would be: mysql -urchihuahua -pRahua rchihuahua

Please take care not to destroy your working php script as you add code to support database update! Make local backup copies so it's easy to revert to working code if you hose up the script while adding database update. HTML form handling, securing web pages, and updating a database in a structured environment are inherently complex tasks. Make sure you're keeping copies of your working scripts before each session so you've got something recent to roll back to.

Code Review

Structured Notation Page 1   Structured Notation Page 2  

Structured Notation Page 3   Structured Notation Page 4  

Demo OE, Fulfillment, and ACH at 2016Winter

Assignment: Teams of three or four confabulate a shop to operate under the umbrella of 2016 Winter. Get three products or services ready with graphics to upload and show at the shop...

Setup Shops:

A sample accounting for startup and a day of operations for a ficitious hussle similar to the case studies teams are confabulating. This is to review double-entry accounting concepts.

Each team please provide on paper:

After a demo of the PAYGO Unbrella 2016 Winter accounts will be set up.


2017Winter Database

Projects and a quiz use the database at 2017Winter. Please gain familiarity with it. Here's a connection string with select authority that will work from the command line at info465.us:

mysql -u2017Winter -pWinter2018 2017Winter

Use W3School's SQL Tute for an introduction to SQL. The database server at info465.us is MariaDB which at this point is a direct drop-in replacement for MySQL which most Linux distros avoid because it's Oracle's property...

Here are sample quiz questions: SQL Samples. Here are sample quiz questions with answers: SQL Questions & Answers.

Here is a sketched Database ERD of a database similar to 2017Winter showing the tables that have to do with accounting. Table names and PK/FK relationships are accurate, some column names are not quite. Use SQL's DESCRIBE command to get the exact column names at 2017Winter.


Here's a sketch of the whole database and file system for a system similar to 2017Winter. Tables with dashed lines around them might show up in some other season to help with distribution functions.


Project #3 - Earn and report commissions

This is 10 points for individual effort and 10 points for teams. Teams setup Items in their shop at 2016Winter to be sold under the PAYGO commission agreement by each of the associates. This is demonstrated in the 'Click to Buy' links for Pacioli's books at info465.us/tinstructor.

Each student's shop at 2016 Fall has a link added to report commissions earned on the three items offered.

Teams contrive several purchases at their shops and the shops of other teams using the fake accounts with credit acconts issued by an ELand ACH.

Shops need a good-looking trial balance put together with at least a dozen orders and journals showing startup and a couple day's operations. QOH for items in the store should be reasonable to support on-line sales.

Project #4 - Document 2016 Winter

Teams thoroughly document the 2016 Winter PAYGO Umbrella's system as built. Team members note which portions they authored, and all team members should be involved enough with the project so they can claim it as an exhibit in their professional portfolio. Individuals, or those fired from a team, may negotiate a subset of the UML Diagrams and other documents. All documents must use recognized shapes from the UML suite of diagrams. Project #4 must be submitted in printed form and also in a single pdf submitted through BlackBoard.

Bring work to class for feedback early. None will be offered between the last class and the exam. The exam time is to collect projects not help debug them or tweak them to specs after critique...

Sketch of Similar Application as at 2016Winter

MVC/Class Diagram

This a rough Class Diagram for the MVC-Model View Controller scheme similar to 2016Spring. The UML doesn't have a MVC in its set of diagrams quite yet, but the Class Diagram is easilty adapted to reflect the popular design pattern. The blocks in a UML Class Diagram typically show Name of the class, its methods, and its properties. Here, to make it fit a MVC, the block represents a model (aka script) instead of a class. 'View' is substituted for method, where the models consistently use HTML GET or POST data in $_REQUEST['View'] to control their output.

The biggest block in the diagram is Controller.php, 'the controller', which surveys the environment for a logged in user and provides a menu of the models and views appropriate for their authority and roles. Please, improve on the diagram if you choose to use it as a model for your Class diagram, and make it a tighter fit to 2016Winter.

Its important for somebody wanting work in app dev to have a ready reference to a Model View Controller and be able to talk about it, sketch it, or sit down and develop with it. The MVC is a popular and powerful design pattern implemented in many development environments in many ways. Visual Studio's MVC is highly abstract with a steep learning curve, which it's well worth climbing since it takes best advantage of the .NET Framework. Django is in many ways a MVC, as are other frameworks for application development.

State Transition Diagram aka State Chart

This is a rough UML State Chart, or state transition diagram, for Orders OStatus from check-out through fulfillment in an application similar to 2016Winter. It's reflects changes from 2016Winter that involve a shipping desk after the ACH authorizes the credit card.

2017Summer State Chart

G Saunders,
Dept of Information Systems
VCU School of Business

G Saunders Wings

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