Issues in the Design of Tools for Distributed Software Systems Development

1980 ◽  
pp. 22-39 ◽  
Author(s):  
Victor R. Lesser ◽  
Jack C. Wileden
Keyword(s):  
Systems Development ◽  
Software Systems ◽  
Distributed Software

scholarly journals Mind Your Outcomes: Quality-Centric Systems Development

2021 ◽  
Author(s):  
Seyed Hossein HAERI ◽  
Peter Thompson ◽  
Neil Davies ◽  
Peter Van Roy ◽  
Kevin Hammond ◽  
...  
Keyword(s):  
Real World ◽  
Large Scale ◽  
Critical Issue ◽  
Systems Development ◽  
Software Systems ◽  
Design Decisions ◽  
Detailed Design ◽  
Distributed Software ◽  
Significant Time ◽  
Design And Implementation

This paper directly addresses a critical issue that affects the development of many complex distributed software systems: how to establish quickly, cheaply and reliably whether they will deliver their intended performance before expending significant time, effort and money on detailed design and implementation. We describe ΔQSD, a novel metrics-based and quality-centric paradigm that uses formalised outcome diagrams to explore the performance consequences of design decisions, as a performance blueprint of the system. The ΔQSD paradigm is both effective and generic: it allows values from various sources to be combined in a rigorous way, so that approximate results can be obtained quickly and subsequently refined. ΔQSD has been successfully used by Predictable Network Solutions for consultancy on large-scale applications in a number of industries, including telecommunications, avionics, and space and defence, resulting in cumulative savings of $Bs. The paper outlines the ΔQSD paradigm, describes its formal underpinnings, and illustrates its use via a topical real-world example taken from the blockchain/cryptocurrency domain, where application of this approach enabled an advanced distributed proof-of-stake system to meet challenging throughput targets.

scholarly journals Mind Your Outcomes: The ∆Q approach to Quality-Centric Systems Development and Its Application to a Blockchain Case-Study

2021 ◽  
Author(s):  
Seyed Hossein HAERI ◽  
Peter Thompson ◽  
Neil Davies ◽  
Peter Van Roy ◽  
Kevin Hammond ◽  
...  
Keyword(s):  
Real World ◽  
Large Scale ◽  
Critical Issue ◽  
Systems Development ◽  
Software Systems ◽  
Design Decisions ◽  
Detailed Design ◽  
Distributed Software ◽  
Design And Implementation

This paper directly addresses a critical issue that affects the development of many complex distributed software systems: how to establish quickly, cheaply and reliably whether they will deliver their intended performance before expending significant time, effort and money on detailed design and implementation. We describe ΔQSD, a novel metrics-based and quality-centric paradigm that uses formalised outcome diagrams to explore the performance consequences of design decisions, as a performance blueprint of the system. The ΔQSD paradigm is both effective and generic: it allows values from various sources to be combined in a rigorous way, so that approximate results can be obtained quickly and subsequently refined. ΔQSD has been successfully used by Predictable Network Solutions for consultancy on large-scale applications in a number of industries, including telecommunications, avionics, and space and defence, resulting in cumulative savings of $Bs. The paper outlines the ΔQSD paradigm, describes its formal underpinnings, and illustrates its use via a topical real-world example taken from the blockchain/cryptocurrency domain, where application of this approach enabled an advanced distributed proof-of-stake system to meet challenging throughput targets.

Summary of the 1st International Workshop on Hybrid Development Approaches in Software Systems Development

2018 ◽  
Vol 42 (4) ◽  
pp. 18-20 ◽  
Author(s):  
Marco Kuhrmann ◽  
Jürgen Münch ◽  
Paolo Tell ◽  
Philipp Diebold
Keyword(s):  
International Workshop ◽  
Systems Development ◽  
Software Systems ◽  
Hybrid Development

scholarly journals Standalone Behaviour-Based Attack Detection Techniques for Distributed Software Systems via Blockchain

2021 ◽  
Vol 11 (12) ◽  
pp. 5685
Author(s):  
Hosam Aljihani ◽  
Fathy Eassa ◽  
Khalid Almarhabi ◽  
Abdullah Algarni ◽  
Abdulaziz Attaallah
Keyword(s):  
Attack Detection ◽  
Detection Methods ◽  
Software Systems ◽  
Distributed Software ◽  
Detection Techniques ◽  
Detection Systems ◽  
Novel Approach ◽  
Validation Experiment ◽  
Critical Issues ◽  
Concrete Solution

With the rapid increase of cyberattacks that presently affect distributed software systems, cyberattacks and their consequences have become critical issues and have attracted the interest of research communities and companies to address them. Therefore, developing and improving attack detection techniques are prominent methods to defend against cyberattacks. One of the promising attack detection methods is behaviour-based attack detection methods. Practically, attack detection techniques are widely applied in distributed software systems that utilise network environments. However, there are some other challenges facing attack detection techniques, such as the immutability and reliability of the detection systems. These challenges can be overcome with promising technologies such as blockchain. Blockchain offers a concrete solution for ensuring data integrity against unauthorised modification. Hence, it improves the immutability for detection systems’ data and thus the reliability for the target systems. In this paper, we propose a design for standalone behaviour-based attack detection techniques that utilise blockchain’s functionalities to overcome the above-mentioned challenges. Additionally, we provide a validation experiment to prove our proposal in term of achieving its objectives. We argue that our proposal introduces a novel approach to develop and improve behaviour-based attack detection techniques to become more reliable for distributed software systems.

scholarly journals Deployment and dynamic reconfiguration planning for distributed software systems

2007 ◽  
Vol 15 (3) ◽  
pp. 265-281 ◽  
Author(s):  
Naveed Arshad ◽  
Dennis Heimbigner ◽  
Alexander L. Wolf
Keyword(s):  
Dynamic Reconfiguration ◽  
Software Systems ◽  
Distributed Software ◽  
Reconfiguration Planning

Evolution and Maintenance of Web Sites

2011 ◽  
pp. 255-271
Author(s):  
Rafael Capilla ◽  
Juan C. Duenas
Keyword(s):  
Web Sites ◽  
Systems Development ◽  
Product Line ◽  
Software Systems ◽  
Software Products ◽  
Software Companies ◽  
Software Engineers ◽  
The Common ◽  
Common Architecture ◽  
The Web

In this chapter we describe the product line models, and show how to apply them for developing and evolving Web products. A product line captures the common and variable aspects of software systems as key assets under a common architecture. Software companies are increasingly adopting this approach in order to accelerate the development of families of similar software products. In certain domains, such as the Web systems, development and maintenance operations are required more often. New techniques to engineer Web sites are needed in order to reduce the time to market for the Web products and to maintain the systems afterward. The authors believe that understanding the notion of lightweight product line and the role that the architecture plays will help software engineers in the construction of software products, and they will be able to manage the evolution effectively against future changes.

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