Visual programming languages from an object-oriented perspective (abstract)

This paper presents a new programming language named SPARCL that has four major elements: it is a visual language, it is a logic programming language, it relies on sets to organize data, and it supports partitioning constraints on the contents of sets. It is a visual programming language in that the representation of the language depends extensively on non-textual graphics and the programming process relies on graphical manipulation of this representation. It is a logic programming language in that the underlying semantics of the language is the resolution of clauses of a Horn-like subset of first order predicate logic. It uses sets as the only method of combining terms to build complex terms. Finally, one may constrain a set's structure by specifying a partitioning into pairwise disjoint subsets.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

: A general purpose visual programming language, based on object-oriented methodology, offers substantial Benefits of reusable code, shorter creation and maintenance time, faster overall understanding of the code, and reduced staff learning time. It should be an ideal fit for sites with long-lived code or very large bodies of code. The value of visual programming languages is well understood for very specific tasks; this report reviews the plan for research and design of a general purpose visual object-oriented programming language through nine steps, which includes general specifications for the preferred language and environment.

The term “visual language” means different things to different people. To some, it means the objects handled by the language are visual. To others, it means the language itself is visual. To the first group of people, “visual language” means “language for processing visual information,” or “visual information processing language.” To the second group of people, “visual language” means “language for programming with visual expressions,” or “visual programming language.”

Managing the graphical complexity of real-life programs expressed in visual programming languages is a great challenge in each visual programming environment. Besides general methods like displaying/layouting graphs and icons on different levels of abstraction or organizing multiple window environments, built-in language mechanisms which permit the structured and modular design of visual programs are essential to overcome this problem. We address these problems by discussing a concept for visual modules in a diagrammatic parallel language as well as a method to describe massive parallel programs consisting of hundreds of processes by means of a visual replication mechanism. >

CombiLog is a logic programming language that uses a small set of basic operators to build larger structures. Although the programs are built strictly through composition, the resulting code is often difficult to read and understand. Empirical studies on program creation both with visual programming language and traditional programming indicate that visual approaches may outperform traditional approaches to programming. Thus, CombiLog could gain largely from a visual interface to support the development process. With a visual interface the resulting system can be regarded as a declarative visual logic programming language, ViColl.

Parsing visual languages with picture layout grammars

Digital nations have become dependent on computer applications. One of the most important part of literacy in today’s digital and connected word are the basics of computer applications development and usage, but also algorithmic thinking. Programmers, developers, analysts are very wanted resource in business, administration and educational organizations. Job portals contain a lot of well-paid job offers for developers, data scientists, knowledge engineers or robotic process automation developers. Still more and more specialists in these areas are needed not only by IT market but also other sectors of the economy. Therefore, schools and universities introduce many courses concerning process modeling, developing, programming and customizing applications used in management, finance, logistics or engineering. Programming seems to be quite difficult to learn, therefore several educational programming environments and the new easier languages like visual programming languages were developed, so that more people, not necessarily specialists, could create new IT tools and speed up development of the information society.The aim of the article is to present the role of visual programming languages like Scratch in encouraging university students to create algorithms and start programming. The paper presents the characteristic of Scratch visual programming language, the framework of VBA programming course with elements of Scratch. It contains also students’ opinions about learning the basics of programming with visual programming language. In the main part of the article the author presents the results of the survey that was at conducted at the beginning of 2019 on a group of Polish Master’s students (n=119) The author’s observation and students’ opinions allow to conclude that Scratch is very easy to access and to use. It makes introduction to programming more enjoyable, helps to concentrate on the problem, solution structure, and the flow of the process. Scratch platform is not an ideal tool, however it allows for faster introduction of new elements of programming languages such as variables, loops, code blocks, objects. Finally, visual programming languages thanks to its easiness and quickly visible final effect (working application) encourages students to self-development in the field of computer programming. Performed research indicates also that business students notice the benefits of knowing basics of programing, they would like to attend basic programing classes. Students acquire knowledge and skills mainly performing instructions received from the teacher (86%) and watching video tutorials. The comparative analysis showed also some differences between various groups of students. Therefore, tools like Scratch can be successfully used to develop IT courses for non-majors. Many advantages make Scratch useful in introductory programming courses prepared for business students that frequently had no prior experience in the area of IT applications development.

VIPR and the Visual Programming Challenge

Many people argue that Visual Programming languages are self-documenting. This article points out that there is no such thing as a self-documenting language. Besides this, many popular methods used to document programs written in other languages do not suit Visual Languages perfectly, and need some tailoring. Therefore, the authors propose a visual adaptation of the dataflow method of documentation. They also present versions of instantiated documentation and denotational semantics applied to visual languages. Finally, they present a Prolog based complete example of documentation.

Visual Programming Languages and the Empirical Evidence For and Against

INTRODUCTION Although visual programming is being broadly implemented in other disciplines, it has only relatively recently become an important supplement to three-dimensional modeling programs in the architecture, engineering, and construction industry. Currently, Grasshopper in conjunction with Rhino is a leading example of a visual programming environment that is strongly supported by a user community that is developing additional functionality, but Grasshopper does not yet work directly with building information modeling (BIM) software. Dynamo is relatively new, but shows considerable promise in becoming a constructive tool to complement BIM, 3D modeling, and analysis programs because it includes parametric geometries and works with Revit, a leading BIM software program. Three case studies are described: extensibility of Dynamo through the use of a building energy simulation package, controlling a virtual model's response through light level sensors, and interactively updating shading components for a building facade based on solar angles. They demonstrate that one can work directly within building information models (BIM) using a visual programming language through updating component parameters. These case studies demonstrate the feasibility of a workflow for sustainable design simulations that is different than that more commonly used -- having a separation between design and analysis models and using a neutral file format exchange such as IFC or gbXML to transfer data. As visual programming languages are still a bit uncommon in the building industry, a short background is provided to place them within the tool set of other customizable tools that designers have been developing.

Visual methods in real-time programming

Rapid prototyping of domain-specific software requires a systematic software development methodology and user-friendly tools [20]. As visual tools are becoming increasingly popular for non-computing professionals and end-users, visual programming languages (VPLs) would potentially challenge traditional specification languages for rapid software prototyping due to their intuitiveness and ease-of-use. Different from CASE toolsets, VPLs are executable specification languages that are defined by graph grammars and syntax-directed rewriting rules, apart from being at a high level. This means that the prototyped domain software can also be rigorously verified to ensure that it is safe and risk-free. We call VPLs designed for specific application domains as Domain-Specific Visual Languages (DSVLs).

An integrated resource platform for visual basic programming language courses (VBPLC) was studied and developed to meet the needs of top quality course construction based on integrated method of Dreamweaver, ASP and fireworks. In this paper, we analysis firstly that the platform should has functions and performance, and its structure and functions are designed in detail. The platform main includes course construction achievements, message board and online testing system (OTS). Through more than two years application, it is demonstrated that platform works stability and reliability, improving students and teachers message exchange, and reached goal of sharing top quality course resources. Index Terms - Integrated resource platform, Visual Basic programming language (VBPLC), top quality course, ASP, Dreamweaver.

Primer KoperasiTribuana II is a business entity (cooperative) under the auspices of Group 2 Kopassus, Kartasura, Sukoharjo. This cooperative was established to meet the needs of members, both from an economic, social and cultural perspective. Primer KoperasiTribuana II was founded on September 14, 1968 under the name Primkopad H-09. This cooperative has changed its name several times, and the last name uses the Primary KoperasiTribuana II. In an effort to meet the needs of the members, the Tribuana II Primary Cooperative carries out several activities, including savings and loans and sales of daily necessities (shops). In fulfilling the needs, especially for stores, the Tribuana II Primary Cooperative sells goods which in its activities are still using the old method (manual). This is considered very ineffective and efficient and can not increase sales profit in a relatively fast time. For that we need a system that can help smooth the sale of goods. In solving this problem, the authors designed a sales information system. In this design, the author uses the Visual FoxPro programming language. The method in this research is waterfal method. The method in this research is through interviews, observation and literature study. The system design is made with context diagrams, HIPO, input output design and Data Flow Design. The system is created in a program with the Visual FoxPro programming language with a database format using MySQL. The result of this design is to produce an application program that will be used for the web-based sales process at the Tribuana II Primary Cooperative and it is hoped that it will facilitate daily transaction activities and compile reports to be faster and more efficient.