Reverse Auction Defined. You probably think you have a good understanding of how most auctions are done. For example, you may have bid on a product you found on eBay. If another person wants the same item you want, she may bid higher than you to get it. Of course, if you still want the item bad enough, you may bid higher yet.
Custom Data Types: Ability to Create them in Setup. I would like to create my own data type in SalesForce. When we create a New Field, we have to choose from the built in options for example, Date, AutoNum, Checkbox, Picklists, text, lookup, etc.
In computer science, an abstract data type (ADT) is a mathematical model for data types where a data type is defined by its behavior (semantics) from the point of view of a user of the data, specifically in terms of possible values, possible operations on data of this type, and the behavior of these operations.