Web. Sphere, Wizards, and the Web: Hiding the Complexity of Application Development Iowa State University Ames, Iowa Enrollment: 27, 823 Public Land Grant University Larry Newhouse Information Systems Leader Iowa State University ADP Center 2 nd Floor ASB Ames, IA 50011 (515) 294 -8290 (515) 294 -0290 (Fax) ldnewho@iastate. edu Dennis Mc. Carville Systems Analyst II Iowa State University ADP Center 2 nd Floor ASB Ames, IA 50011 (515) 294 -0217 (515) 294 -0290 (Fax) dmccarv@iastate. edu
Iowa State University Statistics Established 1858 - 1 st Land-Grant College · Fall 2001 Enrollment 27, 823 · Total Faculty & Staff 6, 157 · Number of Colleges 9 · 01 -02 Revenues $728, 265, 000 · Campus Acres 2, 000
ADP Center Overview · Staff - 86 P&S, 14 Merit, 25 students · Support - 54 Networks, 2579 PCs · 115, 000 records 9, 400 programs Process daily: 273, 000 On-line transaction 300 Batch jobs 100 Help Center Calls
Quiz I write my own JSP’s, Servlets, and/or XML in notepad. o wizard t /need a writing I use t started t or ge le P, Serv JS L code. XM I’m learning and can use all the help I can get.
Overview · Development Environment · Changes / Education · Details of applications · Future
Data Access Model NT 100+ Clients UNIX 30, 000+ clients TN 3270 1800+ clients
Web Application Model
Access. Plus Your personalized secure university information resource allowing students, faculty, and staff to access frequently requested university information and services.
Current Access. Plus screenshot
Next version of Access. Plus
Sections Menu Navigation Application Data / Keys
Dual Platform Integration
Delivered Content
Question of Structure! · Do we change the organization Structure? · Do we modified the ‘roles’ of existing Staff? · Do some of both
Tuning Staff Structure Computer and Network Systems Application Development New Technology Internal Systems Office Information Systems
Understanding Mindsets · Staff Mindset · Analyst · Client · Designer · Application Mindset · TN 3270 Business Applications · Web ‘Request/View’ Applications · Web ‘Business’ Applications
Choices, choices… Object-Oriented Design (OO) Jav a va a ns ea B J CIC S/C Enterprise Java Beans (EJB’s) Jav a. S erv lets Java Database Connectivity (JDBC) va Ja ipt scr OB OL er ) rv ’s Se SP va s (J Ja ge Pa
Decisions Made · Web. Server: · Web. Sphere Application Server · Desktop · Visual. Age for Java & Web. Sphere Studio Family · Home. Site/Front. Page 2000 · Business logic on the central system · Upgrade desktops as needed · Identify/develop training · Enhance support areas · Servers, desktop software, help desk, client
First stop: Training · Self taught · Process & Reference Information · In-house Web. Sphere Class · In-house Experts
Process & Reference Information · Standards · I/O limits, page size limits, transaction size · Many applications on shared platform · Shared code, generators · · Application Development Check List Generators / Wizards: COBOL, JSP & Data Streams Source Control process Website/Application: Help System · Application Developer Resources · Web, Books, Magazines, Videos, In-house Library
Application Developer Resources · Code Examples · Javascript library · How do I… · · Connect to Access. Plus from external pages Link to an external page from Access. Plus Format numeric data Pass data between pages · Web. Sphere training · References · HTML, JSP, Javascript, Servlets, etc. · Educational links
Web. Sphere Training Plan · Introduction to Web. Sphere · HTML · Components / Process Overview · Wizard and Visual. Age for Java tool · (Now Web. Sphere Studio Application Developer) · Testing and Publishing to Server
Expectations for staff in training · Immediate project assignment · Group development discussion / interaction · Feedback on available resources · Suggest new · Contributions: Libraries (Java Script, templates, procedures) · Wizard Improvements
Next Steps … · Accomplished: · · Platform / model decision Development tools Training Graphic assistance · Now we need to: · Unhide the code · Streamline the processes · Enhance debugging options
WEB Design Application Challenges · · Data Dictionary System Documentation Business Logic DB 2
WEB Design Presentation Challenges · Screen Size · Browsers · Accessibility / ADA compliance · Americans with Disabilities Act · Mockups
Systems Development Checklist
Application View
Exploded View A+ Navigation Key Fields System Menu Data Presentation
Wizard Expectations · · Standard Code Rapid Application Development Shorter Learning Curve Source Language · Occurs · Redefines
Staff-Wizards · Why use code generators? · Shorter learning curve for staff · History of in-house developed code generators and standards · Our code generator · Input COBOL copybook · Generates Record. Bean · Generates JSP · Creates Help framework
The Wizard – Servelets/JSPs & Record Beans Initialize Page Display Heading Display Footing Data Translation Once per COBOL copybook Maps the copybook fields to the JSP
Let’s take a tour of our wizard
Process Flow: JSP to COBOL
Process Flow: COBOL to JSP
Anatomy of an ADP JSP
JSP Flow of Control Before the COBOL · Beans Instantiated · Initialize Connection Bean <jsp: use. Bean id="CONN" class="connect. Cics. Conn. Bean" scope="session"/> CONN. cics. Create. Commarea(R 4920 V 1 C. get. ICommarea. Length()); · Initialize Record Bean R 4920 V 1 C. set. R 4920_VRSN(CONN. get. Datatrans(), "01"); · Execute COBOL CONN. cics. Execute(str. Program);
Anatomy of an ADP JSP
JSP Flow of Control After the COBOL · Local Java Variables Loaded · Session Key Variables Set R 4920_T_SUB = R 4920 V 1 C. get. R 4920_T_SUB(CONN. get. Datatrans()); session. put. Value("r 490 studentssn", R 4920_STDNT_SSN); · Data is Presented <td>Student Name <%=R 4920_STDNT_NAME%></td>
Debugging Points · · Connection (Data Passing) COBOL Business Logic Java Script JSP – Java Server Page · System. out. println · Debugger
Session Values
Completing the Process · · · Integrating the check-in/check-out process Know who’s working on the code Team development!!! Validating code (HTML, JSP, etc) prior to check-in Defining the ‘package’ that makes up the transaction · COBOL · JSP · HTML · Record Bean · Servlet
Developer’s Resources
Continued improvements · · Model Evolution Impacts on Application Development! Wizards Complexity · Make it easier to Develop · Make it easier to understand · Make it easier to Deliver · Training, training, …
What does to future hold? · Implementing the New Access. Plus Look · Single Sign-on · E-commerce · ISU portal pilot
Questions?
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