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The purpose of this paper is twofold. First, to examine, on the basis of a teleological time orientation, the differences and similarities between actions that take place before and after the sales and purchases of advanced service solutions; and second, to stress that an active consideration of time facilitates the development of satisfactory service solutions to the service provider (SP) and service receiver (SR) (both) and maintenance of the long-term and complex business-to-business (B2B) service relationships in contrast to a passive consideration of time.

The authors have applied a multi-method design based on: in-depth interviews with key informants at software providers and their customers; analysis of textual documents and structured observations of customer-software provider actions; and follow-up interviews. This study is based on four phases in an industry to examine different views to enable data triangulation.

Complex B2B service relationships are affected by time in an active way, namely, time in the present is linked to customer expectations and their perceptions through two points: the experience (from past) of the SP and the SR and the service solution, previsualized (from future) before the service is implemented. Each interaction between the seller and the buyer progressively changes the mindset of both from the initial position of each (active consideration of time).

The paper highlights the importance of an active treatment of time and cross-functional SP teams, since the individual salesperson may not possess the knowledge or resources to successfully deal with SR demands in complex B2B service relationships.

SPs should train, support, supervise and evaluate the whole team so that it interacts properly and performs appropriate and timely actions toward a successful outcome with their SRs.

The paper contributes to enhance the understanding of time-oriented sales and purchases in complex B2B service relationships based on advanced service solutions, all of which have rarely been addressed in either previous studies or in theory.

The purpose of this paper is concerned with developing two integrable Korteweg de-Vries (KdV) equations of third- and fifth-orders; each possesses time-dependent coefficients. The study shows that multiple soliton solutions exist and multiple complex soliton solutions exist for these two equations.

The integrability of each of the developed models has been confirmed by using the Painlev´e analysis. The author uses the complex forms of the simplified Hirota’s method to obtain two fundamentally different sets of solutions, multiple real and multiple complex soliton solutions for each model.

The time-dependent KdV equations feature interesting results in propagation of waves and fluid flow.

The paper presents a new efficient algorithm for constructing time-dependent integrable equations.

The author develops two time-dependent integrable KdV equations of third- and fifth-order. These models represent more specific data than the constant equations. The author showed that integrable equation gives real and complex soliton solutions.

The work presents useful findings in the propagation of waves.

The paper presents a new efficient algorithm for constructing time-dependent integrable equations.

The purpose of this paper is concerned with developing new integrable Vakhnenko–Parkes equations with time-dependent coefficients. The author obtains multiple soliton solutions and multiple complex soliton solutions for the time-dependent equations.

The developed time-dependent models have been handled by using the Hirota’s direct method. The author also uses Hirota’s complex criteria for deriving multiple complex soliton solutions.

The developed integrable models exhibit complete integrability for any analytic time-dependent coefficient.

The paper presents an efficient algorithm for handling time-dependent integrable equations with time-dependent coefficients.

The author develops two Vakhnenko–Parkes equations with time-dependent coefficients. These models represent more specific data than the related equations with constant coefficients. The author showed that integrable equations with time-dependent coefficients give real and complex soliton solutions.

The work presents useful techniques for finding integrable equations with time-dependent coefficients.

The paper gives new integrable Vakhnenko–Parkes equations, which give a variety of multiple real and complex soliton solutions.

This paper seeks to explore new complex venture approaches needed because the classical twentieth century system engineering model does not accommodate the complexities of twenty‐first century ventures, especially those with significant knowledge management components.

A complexity literature review was performed to identify the attributes of complex ventures. Then the fundamental differences in defining, developing, and implementing complicated traditional systems and complex ventures were explored. The resultant complex venture model builds on the insights derived from chaos and complexity theories; observations of several acquisition successes and failures; and doctoral research on agile enterprise decision support.

Successful traditional systems engineering complicated systems models' built‐in assumptions do not scale to the needed twenty‐first century complex solutions. It is necessary to develop a complex venture model that guides the engineering solutions that: describe complex ventures as flows of intelligence, energy and matter provide value in a dynamic co‐evolving context; provide leadership, not control, with clear and consistent venture‐wide vision that guides empowered individual agent decision making; institute tiered situationally‐aware decision making in both time and place; address factors (material and non‐material) contributing to solution success; provide for rapidly changing context and the co‐evolutionary ventures, including unexpected users, uses, and implementations.

A complex venture conceptual model informs the architecting and systems engineering acquisition practices for this new solution category.

The purpose of this paper is to introduce two new Painlevé-integrable extended Sakovich equations with (2 + 1) and (3 + 1) dimensions. The author obtains multiple soliton solutions and multiple complex soliton solutions for these three models.

The newly developed Sakovich equations have been handled by using the Hirota’s direct method. The author also uses the complex Hirota’s criteria for deriving multiple complex soliton solutions.

The developed extended Sakovich models exhibit complete integrability in analogy with the original Sakovich equation.

This paper is to address these two main motivations: the study of the integrability features and solitons solutions for the developed methods.

This paper introduces two Painlevé-integrable extended Sakovich equations which give real and complex soliton solutions.

This paper presents useful algorithms for constructing new integrable equations and for handling these equations.

This paper gives two Painlevé-integrable extended equations which belong to second-order PDEs. The two developed models do not contain the dispersion term u_xxx. This paper presents an original work with newly developed integrable equations and shows useful findings.

The purpose of this paper is concerned with investigating three integrable shallow water waves equations with time-dependent coefficients. The author obtains multiple soliton solutions and multiple complex soliton solutions for these three models.

The newly developed equations with time-dependent coefficients have been handled by using Hirota’s direct method. The author also uses the complex Hirota’s criteria for deriving multiple complex soliton solutions.

The developed integrable models exhibit complete integrability for any analytic time-dependent coefficients defined though compatibility conditions.

The paper presents an efficient algorithm for handling time-dependent integrable equations with analytic time-dependent coefficients.

This study introduces three new integrable shallow water waves equations with time-dependent coefficients. These models represent more specific data than the related equations with constant coefficients. The author shows that integrable equations with time-dependent coefficients give real and complex soliton solutions.

The paper presents useful algorithms for finding integrable equations with time-dependent coefficients.

The paper presents an original work with a variety of useful findings.

The purpose of this paper is to introduce a variety of new completely integrable Calogero–Bogoyavlenskii–Schiff (CBS) equations with time-dependent coefficients. The author obtains multiple soliton solutions and multiple complex soliton solutions for each of the developed models.

The newly developed models with time-dependent coefficients have been handled by using the simplified Hirota’s method. Moreover, multiple complex soliton solutions are derived by using complex Hirota’s criteria.

The developed models exhibit complete integrability, for specific determined functions, by investigating the compatibility conditions for each model.

The paper presents an efficient algorithm for handling integrable equations with analytic time-dependent coefficients.

The work presents new integrable equations with a variety of time-dependent coefficients. The author showed that integrable equations with time-dependent coefficients give real and complex soliton solutions.

This study presents useful algorithms for finding and studying integrable equations with time-dependent coefficients.

The paper gives new integrable CBS equations which appear in propagation of waves and provide a variety of multiple real and complex soliton solutions.

The purpose of this paper is concerned with developing a (2 + 1)-dimensional Benjamin–Ono equation. The study shows that multiple soliton solutions exist and multiple complex soliton solutions exist for this equation.

The proposed model has been handled by using the Hirota’s method. Other techniques were used to obtain traveling wave solutions.

The examined extension of the Benjamin–Ono model features interesting results in propagation of waves and fluid flow.

The paper presents a new efficient algorithm for constructing extended models which give a variety of multiple soliton solutions.

This work is entirely new and provides new findings, where although the new model gives multiple soliton solutions, it is nonintegrable.

The work develops two complete sets of multiple soliton solutions, the first set is real solitons, whereas the second set is complex solitons.

The purpose of this study is to examine the actions and interactions that take place before and after purchase between a service provider (service seller) and its customers (service buyers) in complex business relationships. Specifically, it is to examine customers’ expectations of the service provider’s service offer before purchase and the same customers’ perceptions of the service solution offered after purchase in a business-to-business (B2B) context.

This study adopted a mixed methods design, which combined data generated through in-depth interviews (both with service buyers and key informants from the service company), an online customer survey, analysis of textual documents and structured observations of buyer–seller interactions and actions. Both objective and subjective points of view at different stages of the investigation were collected.

The authors’ results show that, contrary to previous evidence in B2C service research, the customers’ perceptions of the service performance were not significantly related to their previous expectations. In this context, characterized by dynamic and constantly evolving processes and many parties (both from the buyer and the seller company) involved in the implementation process, service complexity may cause a lack of well-formed expectations regarding how the service will perform and its relevant performance attributes.

This study suggests that the service models traditionally used to describe and explain customer service expectations and perceptions in relatively simple service contexts with final consumers are difficult to apply in B2B complex business relationships. Rather, scholars need to take a holistic, continuously evolving and adapted perspective when examining the formation of customer service expectations and their perceptions in B2B complex services.

There should be a teleological balance between sales and purchase approaches in B2B contexts to optimize the outcome of complex business relationships between service providers and service receivers. The authors suggest several recommendations to service providers to ensure that their salespeople do not create unrealistic and unachievable expectations in the minds of the service receivers. Service providers are also encouraged to develop formal cross functional teams (e.g. consisting of salespeople, service technicians and service support) based on mutual understanding and information sharing.

This study provides an alternative time-oriented understanding of the way customer expectations before purchase and their perceptions after purchasing a complex software solution in industrial markets formed through the lens of teleological framework. As such, this is the first empirical inquiry with this specific framework in B2B contexts making a relevant contribution to literature.

The study aims to show how several factors interact to promote mobile game download: the number of games released by a publisher, the quality of the games released, the popularity of a game's genre, the quality of borrowed intellectual property, the frequency of recommendations, intragenre ranking, consumer rating and review quantity.

Signaling theory was used to classify the mobile game information displayed on the Apple App Store into four groups. A conceptual model was proposed to illustrate the complex relationship between the information and download. Based on information on 203 mobile games in the seven days following their release, the model was empirically tested to identify the influence of information configuration on game download by combining fuzzy qualitative comparative analysis (fsQCA) and a fuzzy cognitive map (FCM).

Three solutions were identified for high game download and two for low/medium. The number of previous games released by a publisher, intragenre ranking, consumer rating and review quantity are core conditions that reinforce high game download. The effects of one information type on another and on downloads change as coexisting information types change.

This study enriches existing knowledge about how combinations of multiple types of game information lead to game download and extends previous variance-based research. Combining an FCM with fsQCA can facilitate one’s understanding of the complex causal relationships between game information and download.