Download - 2001

Monday, April 10, 2023 Fred Rodriguez (Texas) 1

Developing Web-based Database-Enabled Applications

using Microsoft products

2001 ACE/NETC Conference

Toronto, Canada

Fred Rodriguez

Texas Agricultural Extension Service

Monday, April 10, 2023

Fred Rodriguez (Texas) 2

Presentation Outline

• Web-development Philosophy

• Web-development Choices

• Web-development System

• Examples of Applications

• Questions and Answers


Web Development Philosophy



Web Development Philosophy

• WWW browser is a Universal Interface

• Dynamic content has advantages over Static content

• Object-Oriented development can cut costs

• Server-side Scripting is a must

• Databases can empower your site



Web Development Philosophy (continued)

• Production environment must be kept separate from the Development environment



WWW Browser is a Universal Interface

• The internet has become synonymous with computers and information

• WWW browsers are freely available

• WWW browsers are easy to use

• WWW browsers are powerful

• WWW browsers are the interface of choice



Dynamic content has advantages over Static content

• Easier to Maintain– Content and Presentation can be dealt with

separately– Mass changes to content are easily made– Eliminate numerous HTML files that must be

maintained– Easily add HTML functionality without re-

writing any HTML



Dynamic content has advantages over Static content (continued)

• Keep one copy of Universal Information without having to “link” to it or “include” it on multiple pages

• Enhanced Search Capabilities– Context-Sensitive Searches– Complex Searches– Multiple Site or Partial Site Searches



Object-oriented development can cut costs

• Classes of Objects can be dealt with as a whole

• Objects can be shared and reused more easily than non-Objects

• Use HTML Objects which have some characteristics of HTML operators, but they can have enhanced or controlled behaviour



Server-side Scripting is a must

• More reliable than Client Side Scripting

• Does not create classes of users

• Eliminates need for obtrusive techniques like cookies

• Can implement security features easily

• Can be a bottleneck



Databases can empower your site

• Better match for Dynamic Environment than a file-oriented system

• More powerful and universal methodology than file-oriented system

• Scales well

• Economical



Production environment must be kept separate from Development

• Reliability key to application acceptance

• Must have an environment to explore possibilities

• Must have an environment to test new procedures and programs on

• Testing should not impact production


Web Development Choices



Server Platform

• Microsoft Windows NT/2000 Advanced Server (with Internet Information Server IIS)

– Economical (Cost $250)– Easy to setup– Well-suited to Database and Applications– Active Server Pages make system powerful,

easy to develop on, and very dynamic– Expandable (Clustering)



Database

• SQL Server 6.5 or 7.0– Economical (~$300)– Easy to setup and use and administer– Powerful (Transactions a must)

• Access 97 or 2000– Economical (~$100)– Easy to setup and use and administer



Visual Basic Scripting

• Economical (free/part of Operating System)

• Easy to learn and use

• Powerful

• Somewhat Object-Oriented

• Unfortunately also proprietary

• Already familiar with


Web Development System

DODADS

Dynamic Object-oriented Database-driven Application Development

System



Dodads - Tables

• Application Table

• Screens Table

• Screen Sections Table

• HTML Objects Table

• Server/Database/Table/Fields Tables



Dodads - Application Table

• Title/Logo

• Server/Database/Tables Needed

• Server/Database/Tables relationships

• Security (if any)

• Navigation between screens

• Key Field



Application Table Fields

HA_Key: 19

HA_Name: Discuss

HA_Title: Discuss/Chat Board

HA_Logo_URL: http://multimedia.tamu.edu/images/logos/resources.gif

HA_Security_Profile_XID: 1

HA_Background_Image_URL:

HA_Background_Color:

HA_Background_Music_URL:



Application Table Fields - continued

HA_Link_Color:

HA_Visited_Link_Color:

HA_Active_Link_Color:

HA_Font_Face:

HA_Font_Size:

HA_Font_Color:

HA_Status_XID:

HA_Status_Message:




HA_Default_First_Screen_XID:54

HA_Subfunction_Screen_Map: Display,Menu,54,Display,Messages,51

HA_Sort_Field_Names: Chat_Date_Time DESC

HA_Reports_Screen_Map:

HA_Key_Field_Name: Resources/Development/Chats/Chat_Key

HA_Criteria:




HA_Selection_List_Fields_Line1:





HA_Selection_Field_Names:

HA_SDT_Future: 16|#|,Cannot ADD this Record|#|




HA_SDT_Application: Resoururces/Development/Servers|#|,Resources/Development/Databases|#|,Resources/Development/Tables|#|,Resources/Development/Fields|#|,Resources/Development/Chats|#|,Resources/Development/Resources|#|,Resources/Development/Projects|#|,Resources/Development/Project_People_Roles|#|,Resources/Development/People|#|

HA_SDT_System: Resources/Development/Servers|#|,Resources/Development/Databases|

#|,Resources/Development/Tables|#|,Resources/Development/Fields|#|,Resources/Development/HTML_Applications|#|,Resources/Development/HTML_Screens|#|,Resources/Development/HTML_Screen_Sections|#|,Resources/Development/HTML_Objects|#|,Resources/Development/HTML_Screen_Images|#|,Resources/Development/Email_Requests|#|

HA_SDT_Log_Transactions:

HA_SDT_Deletions:

HA_SDT_Relationships: Resources/Development/Chats/Chat_Resource_XID\=\

Resources/Development/Resources/Resource_Key|#|,Resources/Development/Chats/Chat_Topic_XID\=\Resources/Development/Projects/Project_Key|#|,Resources/Development/Chats/Chat_Resource_XID\=\Resources/Development/People/People_Key|#|



Screen Table Fields

• Screen Number and Name

• Screen Last Updated Date/Time

• Screen Last Generated Date/Time

• Screen Always Regenerate Flag



Screen Section Table Fields

• Screen Section Key/Name

• Screen ID

• Section ID

• Sequence Number

• Server/Database/Table

• Criteria



Screen Section Table Fields - continued

• Database Start At

• Database Read Records

• Process Start At

• Process Records

• Repeat Loop

• Conditional Existence



HTML Object Fields

• Object Key

• Object Type (Rich set of Types)

• Object Name

• Object Value

• Object Properties

• Object Conditional Existence



Server/Database/Table/Fields Fields

• Server Name/Number

• Database Name/Number

• Table Name/Number

• Field Name/Number/Properties


Web Development Examples

Download - 2001

Top Related