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POBest practice for structuring data over time
 

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    <p>Hypothetically, if I am tracking the work of a colleague over time. What is the best way to structure my data? My example is entirely made up, but it's a programming question that has come up in practice a huge amount of times.</p> <p>My question is best illustrated with a simple example : </p> <p>You are hardcoding your colleagues work into three separate lists every day. Let's say list 1 is "What he/she needs to do". Let's say list 2 is "What he/she has done". And finally, list 3 is the date these values were recorded.</p> <p>All of the lists are cumulative, and can either increase or decrease over time.</p> <p>So, on day four list 1 would consist of 4 ints: {100, 97, 94, 101} - the integers representing the pieces of work left to be completed. On day four, list 2 would consist of 4 cumulative integer values : {0, 3, 3, 5} representing the work this colleague has done so far (each time they do a piece of work, you add one to the list). List 3 would consist of the dates (let's assume the program is ran once a day, so 01/01/2012, 02/01/2012 etc etc).</p> <p>Now, obviously using a list to store this data is poor practice - forget to input one piece of data and all of your data is corrupted and off by one. </p> <p>What would be the best practice in this case? How should the data be structured? In my head, it seems like a mapping from date to results would be good practice, would this be correct, and create a custom class to hold the "work done/ work to do" information?</p>
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