April 2006
Beginner
1114 pages
98h 16m
English
Content preview from Programming Excel with VBA and .NET
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Determine Requirements
Requirements may be clearly laid out by your manager, or you may be completely responsible for determining them yourself. In either case, it is helpful to test assumptions at this point and get direct feedback from those who will use the product to make sure the requirements are realistic and that nothing was omitted.
It’s important to understand the difference between requirements and design: Requirements define what the product does; design determines how the product does it. In other words, it is a requirement that users log on before using the product, but determining how the username and password are validated is a design issue.
Requirements answer specific questions that help later with design, testing, and documentation. Table 6-2 categorizes some of the common questions.
Table 6-2. Common requirements questions
|
Category |
Question |
|---|---|
|
Function |
What tasks does the product perform? |
|
Audience |
What level of experience do the users have with the tasks and with Excel in general? |
|
Compatibility |
What version or versions of Excel must the product work with? |
|
Do users have PCs, Macs, or both? | |
|
Deployment |
Will the product be distributed on disk or from a network share or downloaded over the Internet? |
|
Dependencies |
Are there other components that must be installed for the product to work? |
|
Will this product be used by other products as a component? | |
|
Does the product use external data, and if so what is the data source? |
Obviously, these general questions ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.