The key to the Lo Fi approach is to get a good overall structure from your

The key to the lo fi approach is to get a good

This preview shows page 268 - 270 out of 517 pages.

The key to the Lo-Fi approach is to get a good overall structure from your sketches, and do minimal CSS (if any) to get the view to look more or less like your sketch. Remember that the common parts of the page layout—banners, structural divs , and so on—can go into views/layouts/application.html.haml . Start the process by looking at the Lo-Fi UI sketches and split them into “blocks” of the layout. Use CSS divs for obvious layout sections. There is no need to make it pretty until after you have everything working. Adding CSS styling, images, and so on is the fun part, but make it look good after it works. Since the example in Section 7.6 involved existing functionality, there is no need to modify the Haml or CSS. The next section adds a new feature to RottenPotatoes and thus needs Haml changes. Summary: Borrowing from the HCI community once again, Lo-Fi sketches are low cost ways to explore the user interface of a user story. Paper and pencil makes them easy to change or discard, which once again can involve all stakeholders. Storyboards capture the interaction between different pages depending on what the user does. It is much less effort to experiment in this low cost medium before using Haml and CSS to create the pages you want in HTML. Self-Check 7.4.1. True or False: The purpose of the Lo-Fi UI and storyboards is to debug the UI before you program it. True. 7.5 Agile Cost Estimation Given that the Agile Manifesto values customer collaboration over contract negotiation, it is unsurprising that it does not follow the plan-and-document approach of making a cost estimate and
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schedule for a given set of features as part of bid to win a contract, as we shall see in Section 7.10 ). This section describes the process at Pivotal Labs, which relies upon Agile development ( Burkes 2012 ). Pivotal Labs is a software consultancy that teaches clients the Agile lifecycle while collaborating with them to develop a specific software product. Because Pivotal does Agile, Pivotal never commits to delivering features X, Y, and Z by date D. Pivotal commits to providing a certain amount of resources to work in the most efficient way possible up to date D. Along the way, Pivotal needs the client to work with the project team to define priorities, and let Tracker’s velocity guide the decisions as to which features actually make it into the release on date D. A potential client first gets in contact with the Agile team. If it looks like a good fit for the Agile team, they first do a 30 to 60 minute phone call telling potential clients what an engagement looks like, how it’s different from other “outsourcing” agencies, what type of time commitment it will require on the customer’s part, and so on. This first call makes clear that the Agile team works on a time and materials basis, not on a fixed bid basis, as is usually the case with plan-and-document processes. The Agile team gets them to describe at a high level what they want developed, what their current development process looks like, what their current staffing is, and so on.
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  • Spring '19
  • Dr.Marcos

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