A decision support system (DSS) is an information system that supports decision-making activities. This post is an introduction to decision support system (DSS). Decision Support System Classification There are different DSS taxonmies: Haettenschwiler’s Relationship to the User Taxonomy Haettenschwiler’s classification…
H.323 is a set of standards to provide audio-visual communication sessions on any packet network such as IP networks. It works in the OSI application (level 7) layer. H.323 Components H.323 components: Audio coding formats used by H.323 audio codecs…
Linux OS or GNU/Linux is a family of Unix-like operating systems based on the Linux kernel and that maintain some level of compatibility. Do not confuse Linux OS or GNU/Linux with the Linux kernel. When there is a need to…
A Unix-like OS is an operating system based on Unix. The number of process states in Unix systems is 9. List of Unix-like OS Unix-like OS families: Unix System V Unix System V was developed by AT&T. Xenix Xenix was…
This post is about e-learning. A webcast is 1:n. A webinar has more interaction than webcast. Open educational resource (OER) (in Spanish REA, recursos de educación abiertos). A massive open online courses (MOOC) Triangle of e-learning Components of the e-learning…
The 2030 Agenda for sustainable development is a document issued by the United Nations. The goal of the 2030 agenda is reaching the committed sustainable development goals (SDGs) before 2030. It consists of 17 objectives with 169 goals. 17 objectives:…
Este artículo resume aspectos sobre la seguridad de la información en el sector público en España. Normas de firma electrónica en España Se regula en la ley: Ley 6/2020, de 11 de noviembre, reguladora de determinados aspectos de los servicios…
This post summarizes some examples of applications of information technology. E-commerce You can read this post about e-commerce. E-learning You can read this post about e-learning. Decision Support Systems You can read this post about decision support systems. Computer-Supported Cooperative…
The TCP/IP framework is officially known as the internet protocol suite. It was implemented before the OSI model was released, and this is why it does not follow it. TCP/IP Protocol Model There are diffeent Internet Group Management Protocol You…
This post is about data preservation. The topic of information retrieval models is covered in CSSTIAE exam, topic 2023.105. Information Retrieval Information retrieval (in Spanish, recuperación de la información) is used in search engines, databases, and document retrieval systems. Information…