This question came from a job seeker. I was recently fired from a company. My old boss just contacted me asking work-related questions. Should I respond? Absolutely. But it’s the way you respond that is critical. Answer them as a consultant, only. You want to stay professional at all time Since you were fired, you should not be speaking to...

Data Abstraction Layer In an illustrated view, an individual can understand in what way the dissimilar models work together. Consider this from the highest level, the external model. The external model is the view of the end user data. Generally, a database is a business system that meets the needs of numerous services. On the other hand, a service is...

This question came from a busy professional. Being a manager how do you deal with rude and difficult team members? This is difficult because often it’s a manner of perception or perspective. What some employees deem rude may seem “direct” or “accurate/precise” to others. What some employees find difficult may be diversity in the work place. Not many of us...

Types of Data Models Record-Based Logical Data Models Logical data models based on records deliver concepts that users can understand, however data are not far from the way is kept on the computer. Three known data models of this kind are relational data models, hierarchical data models, as well as network data models. The relational model signifies data in the...