Text Files and Text Editors By now, we’ve learned some basic commands to work with files and directories, but let’s start focusing on a specific type of file known as a text file. There are lots of files in a computer system, but the most basic and flexible of all of these is the text file. In fact, all your configuration files and shell scripts, these are all going to be text files on your system. Now, because a Linux user will often modify configuration files and create shell scripts,…

Identifying Running Processes Alright, let’s dig a little bit deeper into processes. Now, before processes can be managed, you have to be able to identify them first. We talked about that with the process ID numbers, but where are you going to find these ID numbers? Well, there are two utilities to help identify processes. We have PS and Top. In either case, processes can be searched for in various different ways. And you can do this using their name or the resources they’re using. Another reason for identifying processes…

Package Management Principles. In this section of the course, we’re going to describe the ways that you can manage the tasks of installing, uninstalling and upgrading software packages as we move further along. We’re also going to cover managing programs after they’re already running. And this is called processes. Anytime you have a running program, that is called a process. Now, finally, we’re going to discuss log files which are going to record the details of what running programs are actually doing, especially those processes that are automatically being run…

Creating Links In Linux sometimes it’s handy to refer to a single file using multiple names rather than to create several copies of it. So users can create multiple links to a single file. These are known as hard links or symbolic links and both of these are created using the Ln command or the link command. Let’s first take a look at the hard link. The hard link is a duplicate directory entry and both the entries are going to point to the same file because they both work…

Introduction to Linux Filesystem It’s time for us to start navigating our way around the Linux file system. In this lesson we’re going to cover how to learn what files are on the hard disk, how to change directories, and how to refer to files that aren’t in your current directory. Now, to manipulate files, it’s helpful to know what they are. If you use the LS command, which is short for list, this is going to provide you some information. If there’s no options used, it’s just going to…

Analyze Potential Value: Inputs and Elements Analyze potential value inputs and elements. After completing this topic, you should be able to recognize considerations that are relevant when analyzing potential value. The purpose of Analyze potential value and recommend solution task is to estimate the potential value for each design option and to establish which one is most appropriate to meet the requirements. Inputs include using benchmarks to determine which components meet the value necessary to meet business goals. This includes information about performance expectations and metrics such as productivity increases,…

Define Design Options: Guidelines and Techniques Define design options. Guidelines and Techniques After completing this topic, you should be able to recognize how guidelines and techniques are used when defining design options. The following guidelines are considered for design options existing solutions are included as a component of the option. In the case of the doctor’s office, the interfaces with insurance companies in order to process claims would be included. A future state description provides insight into the design options that would be considered. And of course, trace requirements are…

Define Requirements Architecture: Techniques Define requirements. Architecture Techniques After completing this topic, you should be able to recognize guidelines and techniques for defining the requirements. Architecture managed software includes modeling tools and requirements, management tools, legal and regulatory information, including contractual requirements, may impact the architecture. Methodologies and frameworks such as Agile uses lightweight documentation, but the relationship between user stories and the backlog must be maintained. Frameworks include a predetermined set of models such as use case models or unified modeling language. Data modeling is used to show how…

Section Overview The Requirements Architecture and Design Options course is the 7th one of the Business Analysis certification program, which includes a total of 14 courses. This course is part two of requirements analysis and Design. Definition knowledge Area It covers the last three tasks, which are all related to creating Requirements Architecture. You develop a set of designs and analyze those to determine where the best value is. The final step is to develop the solution recommendation that represents the best design. The first section of this course called…

Section Overview The Requirements Analysis and Design Definition course is the 6th course of the Business Analysis Certification program, which includes a total of 14 courses. The content is aligned with the Business Analysis Body of Knowledge Guide, and in this course we are going to begin looking at the knowledge area called Requirements Analyzes and Design Definition. The course covers the first three tasks, which involve creating a list of requirements and then verifying that they are of sufficient quality to be used for further work, and after that,…