REQUIREMENTS! When someone tells you they have a need, you should be able to investigate that original statement with about seven (7) Why’s before they get bored or frustrated with your interest. I need a daily spending report! Why Daily? Why only spending? Why only ONE day? Why not a Rolling Daily Report of 5Continue reading “What do seven Y’s spell??”
Tag Archives: modeling
What Users Say Translated to Software Engineering!
I need a report that shows me how much I spent yesterday! Not an atypical ‘requirement’ from a business users’ point of view, huh? What do you as a Software Engineer DO with this and similar statements? Let’s start with a couple of questions that we can use to expand and clarify on a statementContinue reading “What Users Say Translated to Software Engineering!”
Software Engineering: How do you start?
There are interesting challenges in applying the art and science of Engineering Disciplines to Software Analysis and Design. If we accept the notion that we need as complete a collection of Requirements as possible either for a full blown application solution (change or new) or a SPRINT to add functionality to either an existing applicationContinue reading “Software Engineering: How do you start?”
Orthogonal Views…
A current definition provides us this: or·thog·o·nal [awr-thog-uh-nl] adjective 1. Mathematics . a. Also, orthographic. pertaining to or involving right angles or perpendiculars: an orthogonal projection. b. (of a system of real functions) defined so that the integral of the product of any Continue reading “Orthogonal Views…”
Remember Codd and Date?
These were two technology authors who were quoted on the subject of Relational Integrity and a Normalized Data Model. Their ideas of reducing redundancy in the physical data schema and protecting the mandatory relationships between entities took a whole lot of attention about how to create, define, and manage data so that it was safeContinue reading “Remember Codd and Date?”
Syntax of an ERD – Entity Relationship Diagram
Syntax Rules for an Entity Relationship Diagram: An Entity Relationship Diagram Sample: Use this link: https://docs.google.com/drawings/d/1keA4BzVCJXcUoNWDw7-0pIrQ7AsB5CgavjWR7P5Wyrg/edit?hl=en_US (may have to paste into a browser) Business Rules derived from this sample are: It is also interesting to note that since there is no relationship between Customer and Product there are no Business Rules that can be derived betweenContinue reading “Syntax of an ERD – Entity Relationship Diagram”
Modeling for Money!
One of the basic principles of Software Engineering is the creation of visual models to demonstrate the project team’s understanding of the discoveries we are collecting from the users who are driving our discussions. The type of drawings were proscribed by several authors of the time but regardless of the style of the drawing, theyContinue reading “Modeling for Money!”
The Path To Inkc 