检索结果-内蒙古大学图书馆

WHY programming environments NEED DYNAMIC DATA-TYPES

IEEE TRANSACTIONS ON SOFTWARE ENGINEERING 1981年第5期7卷 451-457页

作者： GOODWIN, JW Software Sys. Res. Ctr. Linkoping Univ. Sweden

Weakly typed languages can be used to create program-supporting software flexible enough to permit types to be defined at runtime. Strongly typed languages, such as Ada and Pascal, however, hold the advantage of efficient compilation. Considered in the context of a programming environment, the issue of weakly typed versus strongly typed languages can be restated as a desire to have both total expression and total variables. Seen in this way, the problem appears to derive neither from strong types nor weak types, but rather from static types. What is needed is dynamic data typing, which, in the example of the variables function, can supply a set of data types over which the variable ranges cannot be bound at compile time because new types may be defined at runtime. The alternative to dynamic data typing is to push type information into tables or other programmer-defined runtime data structures. In practice, this would mean going back to weak typing in order to achieve the necessary late binding.

关键词： Strong Typing Compiler Oriented Language Data Abstraction Dynamic Defining Of Types Lisp programming environments

来源：评论

学校读者我要写书评

暂无评论

AUTOMATIC-GENERATION OF VISUAL programming environments

引用

COMPUTER 1995年第3期28卷 56-66页

作者： COSTAGLIOLA, G TORTORA, G OREFICE, S DELUCIA, A Univ of Salerno

The authors present the VLCC (Visual Language Compiler-Compiler) graphical system for the automatic generation of visual programming environments. The VLCC system supports implementation of a visual language by helping the language designer define the graphical objects, syntax, and semantics of that language. The generation process produces an integrated environment with an editor and interpreter for the defined visual language. To capture the widest range of visual languages, the VLCC system can be configured for a specific class of languages (for example, diagrammatic, iconic, and so on). Characterization of these different language classes depends on the structure of their graphical objects and on the way they can be composed. For example;an icon-oriented visual language is based on primitive icons, characterized by the coordinate pair of a representative point (such as the centroid), and relations to spatially arrange those icons and form iconic sentences. The VLCC system uses an underlying grammar formalism called the positional grammar model. Positional grammars provide a powerful formalism to describe and efficiently parse a wide variety of visual languages. They directly extend from the context-free string grammars where spatial relations in addition to string concatenation are allowed. This similarity means many interesting results on LR parsing can be easily extended to the positional;grammars. In particular, a (Yet Another Compiler-Compiler) YACC-like tool has been implemented and embedded in the VLCC system. This tool enables automatic parser generation of visual languages described by such positional grammars.

关键词： programming environments Joining processes Computer interfaces Program processors Two dimensional displays Chemicals Logic circuits Flowcharts Arithmetic

来源：评论

学校读者我要写书评

暂无评论

KNOWLEDGE-BASED programming environments

引用

KNOWLEDGE-BASED SYSTEMS 1991年第1期4卷 4-15页

作者： TYUGU, E Institute of Cybernetics of Estonian Academy of Sciences 21 Akadeemia tee Tallinn 200108 Estonia USSR

This is a survey presented at the International Joint Conference on AI (IJCAI-89) in Detroit on Soviet work in the field of knowledge-based programming. It considers work which started in the 1970s as automatic programming projects with a goal to find new ways of program construction and, particularly, the work on computational models and problem solving. The structural program synthesis and conceptual programming technique developed in this framework were later used in the new generation computer project, START.

关键词： KNOWLEDGE BASES programming environments PROGRAM SYNTHESIS DECLARATIVE programming

来源：评论

学校读者我要写书评

暂无评论

COMPUTING environments FOR DATA-ANALYSIS .3. programming environments

引用

SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING 1988年第2期9卷 380-400页

作者： MCDONALD, JA PEDERSEN, J STANFORD UNIV DEPT STATSTANFORDCA 94305

This is the third in a series of papers on aspects of modern computing environments that are relevant to statistical data analysis. In this paper, we discuss programming environments. In particular, we argue that integrated programming environments (for example, Lisp and Smalltalk environments) are more appropriate as a base for data analysis than conventional operating systems (for example, Unix).

关键词： 68N15 68N25 68T25 68V05 data analysis workstations programming environments

来源：评论

学校读者我要写书评

暂无评论

Programmer eXperience: A Set of Heuristics for programming environments 12th

Programmer eXperience: A Set of Heuristics for Programming E...

引用

12th International Conference on Social Computing and Social Media (SCSM) part of the 22nd International Conference on Human-Computer Interaction (HCI)

作者： Morales, Jenny Rusu, Cristian Botella, Federico Quinones, Daniela Univ Autonoma Chile Fac Ingn Av 5 Poniente 1670 Talca 3460000 Chile Pontificia Univ Catolica Valparaiso Av Brasil 2241 Valparaiso 2340000 Chile Univ Miguel Hernandez Elche Avinguda Univ Elx S-N Elche 03202 Spain

ISBN: (纸本)9783030495756;9783030495763

The definition of user experience (UX) is broad and covers several aspects. The job of any programmer is very specific and demanding. He/she uses different systems or tools to carry out their programming tasks. We consider a programmer as a specific case of user, who employs programming environments and other software development artifacts. We therefore consider this particular kind of UX as Programmer eXperience (PX). Several authors have defined different aspects of PX, including, among others, language features, programming learning factors or programmer performance. Usability is a relevant aspect of UX, as well as an important aspect of programming environments. Heuristic evaluation is an inspection method that allows evaluating the usability of interactive software systems. We developed a set of heuristics following the methodology proposed by Quinones et al. We defined a new set of 12 specific heuristics that incorporate concepts of UX and usability of programming environments. These heuristics have been validated following also that methodology. The results obtained in different effectiveness criteria were satisfactory. However, the set of heuristics could be further refined and validate in new scenarios or case studies.

关键词： Programmer eXperience User eXperience Usability Heuristic evaluation programming environments

来源：评论

学校读者我要写书评

暂无评论

CONCEPTUAL MODELS OF programming environments - HOW LEARNERS USE THE GLASS BOX

引用

INSTRUCTIONAL SCIENCE 1993年第6期21卷 473-500页

作者： JONES, A OPEN UNIV INST EDUC TECHNOLMILTON KEYNES MK7 6AABUCKSENGLAND

The first part of this paper reviews the criteria offered by du Boulay, O'Shea and Monk (1981) for designing a conceptual model of a programming environment for teaching novices programming. It argues that although the criteria offered, namely simplicity and visibility, are helpful, these criteria alone are not sufficient as they do not address the choice of which aspects of the conceptual model are to be presented to the learner. In order to address this issue it is necessary to carve up the conceptual model differently and to distinguish different aspects. One important aspect for novices is a functional view, as this will help them develop programming plans. A new complementary categorisation is offered which offers three views of the conceptual model: namely state, procedure and function, and adds a new criterion, namely consistency. Two languages designed for novices using the general criteria of du Boulay, O'Shea and Monk are then analysed in detail, firstly using du Boulay et al.'s criteria, and secondly using the proposed categorisation. Data from novices learning to program in the two languages shows that although the languages had been satisfactorily designed according to du Boulay et al.'s criteria, a number of learning difficulties remained, which were satisfactorily accounted for by the new categorisation.

关键词： conceptual Learning difficulties Taxonomy programming environments programming Language Conceptual Modelling

来源：评论

学校读者我要写书评

暂无评论

Achieving flexibility in direct-manipulation programming environments by relaxing the edit-time grammar

Achieving flexibility in direct-manipulation programming env...

引用

IEEE Symposium on Visual Languages and Human-Centric Computing

作者： Birnbaum, BE Goldman, KJ Washington Univ St Louis MO 63130 USA

ISBN: (纸本)0769524435

Structured program editors can lower the entry barrier for beginning computer science students by preventing syntax errors. However, when editors force programs to be executable after every edit, a rigid development process results. We explore the use of a separate edit-time grammar that is more permissive than the runtime grammar. This helps achieve a balance between structured editing and flexibility, particularly in live development environments. JPie is a graphical programming environment that applies this separation to the live development of Java applications. We present the design goals for JPie's edit-time grammar and describe how its implementation supports a balance between structure and flexibility. As further illustration of the benefits of a relaxed edit-time grammar, we present "mixed-mode editing," an integration of textual and graphical editing for added flexibility.

关键词： Java computer science education grammars graphical user interfaces programming environments structured programming visual programming JPie Java application development computer science students direct-manipulation programming environment edit-time gramma

来源：评论

学校读者我要写书评

暂无评论

Graphical programming environments for Educational Robots: Open Roberta - Yet another One? 16

Graphical Programming Environments for Educational Robots: O...

引用

IEEE International Symposium on Multimedia (ISM)

作者： Jost, Beate Ketterl, Markus Budde, Reinhard Leimbach, Thorsten Fraunhofer IAIS Schloss Birlinghoven D-53754 St Augustin Germany

ISBN: (纸本)9780769554372

In recent years, an increasing number of school children is beginning to learn about robotics in the classroom in order to stir their interest in STEM professions. Teachers rely on simple educational robots and intuitive programming environments and graphical programming environments have become a frequent starting point for young robotics newbies. However, currently available tools do often not sufficiently support teachers and students in the classroom. In this study, we evaluate programming environments for educational robots;our results point to the need of lowering the complexity of tools as well as of incorporating combinations of web and cloud technologies, embedded systems and communication concepts into these environments. The technical part of this work presents Open Roberta - an open source based addition to commercial educational robot environments that addresses these needs.

关键词： cloud computing computer aided instruction computer science education control engineering computing control engineering education educational robots embedded systems Open Roberta STEM professions Web technologies cloud technologies commercial educational robot environments communication concepts graphical programming environments intuitive programming environments school children young robotics newbies Educational institutions Educational robots programming environments programming profession Software e-learning education graphical programming roberta robotic visual programming web 2.0 web technology Embedded systems Web Technologies Educational robots programming environments Cloud Computing programming profession control engineering computing graphical programming visual programming computer-assisted instruction control engineering education school child computer science education Educational institutions e-learning

来源：评论

学校读者我要写书评

暂无评论

Design issues in building Web-based parallel programming environments

Design issues in building Web-based parallel programming env...

引用

6th IEEE International Symposium on High Performance Distributed Computing

作者： Dincer, K Fox, GC Syracuse Univ Syracuse United States

ISBN: (纸本)0818681187

We exploited the recent advances in Internet connectivity and Web technologies for building Web-based parallel programming environments (WPPEs) that facilitate the development and execution of parallel programs on remote high-performance computers. A Web browser running on the user's machine provides a user-friendly interface to sewer-site user accounts and allows the use of parallel computing platforms and software in a convenient manner. The user may create, edit, and execute files through this Web browser interface. This new Web-based client-sewer architecture has the potential of being used as a future front-end to high-performance computer systems. We discuss the design and implementation of several prototype WPPEs that are currently in use at the Northeast Parallel Architectures Center and the Cornell Theory Center These initial prototypes support high-level parallel programming with Fortran 90 and Nigh Performance Fortran (HPF), as well as explicit tow-level programming with Message Passing Interface (MPI). We detail the lessons learned during the development process and outline the tradeoffs of various design choices in the realization of the design. We especially concentrate on providing sewer-site user accounts, mechanisms to access those accounts through the Web, and the Web-related system security issues.

关键词： parallel programming programming environments web security HPF MPI Fortran 90 WWW

来源：评论

学校读者我要写书评

暂无评论

Aiding the Transition from Novice to Traditional programming environments 17

Aiding the Transition from Novice to Traditional Programming...

引用

16th International ACM Conference on Interaction Design and Children (IDC)

作者： Moors, Luke Sheehan, Robert Univ Auckland Auckland New Zealand

ISBN: (纸本)9781450349215

Novice programming environments are increasingly popular as introductory tools for teaching programming. Many of these tools differ significantly from traditional programming environments and are successful in motivating novices and making it simple to start programming. However, it has been reported that students still struggle when transitioning to general-purpose languages and have difficulties learning certain concepts. In this paper, we briefly describe some of the problems novices have when learning to program and identify drawbacks to existing novice programming environments. We then present two different works in progress with features designed to keep some of the advantages of current novice programming environments but in such a way that students are led to deeper concepts. Such features include immediate feedback, loop construction, and automated identifier updating. This report references the feasibility of these approaches.

关键词： Novice programming programming environments block-based programming

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：