In light of the progress and technological development that included all aspects of life and the educational field in particular, countries that do not provide education technology for their learners have become scientifically backward countries, because the use of modern technology in the educational process facilitates the process of scientific communication between learners and their teachers, and the simplest of these means are data show, electronic correspondence and computer laboratories
Your phrase "INSTRUCTIONAL TECHNOLOGY MODEL" is confusing. Do you mean instructional design or instructional technology? For whilst they are related they are not the same. Instructional design is ensuring that learners will be successful in their learning as opposed to having an educational experience wherein instructional technology are tools, or some of the means, by which the learning takes place.
Having ID model like Backwards Design (Wiggins and McTighe - https://cft.vanderbilt.edu/guides-sub-pages/understanding-by-design/) is widely excepted in higher education. Reason being is that learners come to us (higher education / trade school) to learn what they need to be successful in job X. A training /bachelor's / master's / Ph.d program that is not organized is a train wreck that nobody wants. It's all about learning outcomes - if you don't know where you are going, how will you know if you ever arrived.
Instructional technology are tools used to help instructors teach and to help learners learn. An instructional designer's job is not only choosing the best strategy, but also the best tool to create the most effective learning experience. Strategy trumps tool every time. A sharpened pencil and a piece of paper are also tools. As much as I love technology, it's easy to forget the basics. I want my faculty and learners to also know what's best to choose in a given situation. So, an instructional technology model would be one in which for each tool a description is given: what is it, why use it, how to use it. From there, let the instructor or learner choose how and when to use it.
First question answer: We know better that in modern using technology is very important in teaching and learning. The followings are the advantages of using instructional technology in teaching and learning process:
1. Easy and better access to information at any time and anywhere
2. Creating collaboration environment for students
3. Creating diversity environment for learners to share their experiences
4. Instant feedback to students
5. engaging students in process of learning and teaching
6. promote technology skills
7. Decrease the cost and....
Second question answer: I am mostly using ADDIE model. For a teacher its important to start from analyzing training needs along with collecting information about learners and needs and expectation of organization. in the second phase he/she should select the strategy to follow and write the objectives with selecting appropriate media for transferring information to students and teaching method. In third stage he/she should develop the course materials. In step 4 one should think on implementation of the designed plans and finally evaluate the understanding of students and other aspects of training.
There are some other models too, like: Merrill’s Principles of Instruction, Bloom taxonomy and so on.
As an ESL/EFL teacher, I feel that we need a model to set our teaching-learning activity on the right path without any risk of letting the activities go off track. Technology is the tool that helps to ease the task of the teachers and learners in the process. Technology is supportive rather than obligatory unless we are concerned about technical education.
Usually, you would use instructional design or learning design models when designing courseware for any purpose or medium. Learning design models rely on learning theories such as cognitivism, constructivism, experiential learning, etc. and instructional design models focus on the process used to build instruction such as ADDIE, ISD, etc. While there aren't any instructional technology models that I'm aware of, it is simply the mix of tools and technology that is used to build and deliver the instruction based on the instructional design. Instructional technology refers to the technology architecture or tech stack, i.e. the back-end technology and is typically illustrated using technology models by software developers who build the technology infrastructure for a system such as a learning management system. I hope this helps. I am writing this from my (20+ years) experience in the industry and not from any formal education so perhaps there are gaps in my understanding.